In recent years, the competition in global valve market is increasingly fierce. Since the developed countries are restricted by raw materials resources, labor costs and other factors, global valve manufacturing bases are constantly transferred to Asia and other developing countries. Affected by rapid economic development, encouragement policies and low cost of raw materials and labor, and other factors, in recent years, the valve industry in China and other developing countries is developed rapidly, the product exports and market shares are expanding, and China and other developing countries are replacing Europe and other countries and regions continuously and have become important industrial production bases and main product sales markets.